I too am from the Tougas line that went to St. Louis and eventually married into the Paquet family there. I have some confusing information about the names, one document I have says it was Theodolite Tougas dit Laviolette, and one says Theotisme Tougas. Ring any bells? This Tougas married Laurant Lanadierre Langdeau. Spellings sketchy on that last name. The Paquet connection is through Marie Louise Lanadierre Langdeau. Granddaughter of Jean Baptist Tougas.